“Iris coloration and a case of temporary heterochromia in the Red-bellied Grackle (Hypopyrrhus pyrohypogaster): Coloración del iris y un caso de heterocromía temporal en el Cacique Candela (Hypopyrrhus pyrohypogaster)” (2021) Ornitología Colombiana, (13), pp. 83–88. Available at: https://revistas.ornitologiacolombiana.com/index.php/roc/article/view/268 (Accessed: 24 January 2025).